Considering the present age of Sameer as $‘ b ’$ years, answer the following questions
His sister's age is $5$ more than twice his age while his brother's age is $4$ less than twice his age.

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Solution

Finding the ages of Sameer;s sister and brother
Present age of sameer is $‘ b ’$ years
According to the question,
Sameer's sister age $= (2 b + 5) y e a r s$
Sameer's brother age $= (2 b - 4) y e a r s$
Hence, Sameer's sister's and brother's age is $(2 b + 5)$ years and $(2 b - 4)$ years respectively.

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